2011 Z1 Audio/Horn not working

[Johnny79]

When the I have the battery selector on just the one battery the horn or audio does not work as it was working before.
When the selector is on combine batteries but horn and audio work.

Wondering if it could be simple as just a burnt fuse?

Thanks for taking the time to post!

Johnny

[Z3CO23]

When the I have the battery selector on just the one battery the horn or audio does not work as it was working before.
When the selector is on combine batteries but horn and audio work.

Wondering if it could be simple as just a burnt fuse?

Thanks for taking the time to post!

Johnny

Voltage on your house battery is probably low. Give it a good charge and see if that fixes it.

[chpthril]

Does it work on 1 and 2 or on 2 and not 1? I'd look close whichever battery it does not work when turned to

[Johnny79]

Does it work on 1 and 2 or on 2 and not 1? I'd look close whichever battery it does not work when turned to

Horn/Audio work on when selecting combine batteries so on 2. When running the boat, should I be running off of just one or both batteries?
I have been using just one battery up until now. Thanks

[Bryan]

If I'm reading you right, I would run as follows if it was my boat...

Combine - anytime engine is running to charge both batteries
#2 - anchored out in a cove or tied to a dock and playing music, this give you....
#1 - reserved to start the boat in case you run down battery with the stereo, then switch to combine to charge back up

[chpthril]

Sounds like the red positive cable between the diode isoator and house battery is not connected and battery is dead. When in the combine position, the isolator is bypassed and the house battery then receives a charge from the alternator.